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Swedish experience with deammonification process in biofilm system
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Water, Sewage and Waste technology.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Water, Sewage and Waste technology.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Water, Sewage and Waste technology.
2010 (English)In: Research and application of new technologies in wastewater treatment and municipal solid waste disposal in Ukraine, Sweden and Poland: Proceedings of a Polish-Swedish-Ukrainian seminar / [ed] E. Plaza, E. Levlin, 2010, 31-40 p.Conference paper, Published paper (Other academic)
Abstract [en]

Treatment of supernatant from dewatering of digested sludge was performed in a pilotplant scale at Himmerfjärden wastewater treatment plant in the Stockholm region. A moving bedbiofilm reactor was used with Kaldnes rings as support material. Deammonification is a two-stepprocess technology in which the first step involves oxidation of part of the ammonium to nitritefollowed by oxidation of remaining ammonium with the formed nitrite into nitrogen gas(anammox). The two processes can be performed in two separate reactors or in one-stage biofilmreactor there the outer biofilm layer performs nitritation and an inner layer the anammox reaction.One-stage technology was started by seeding anammox bacteria into a step with partial nitritationand deammonification was rapidly established with an average nitrogen removal between 55 and88% with influent ammonium concentrations between 350 and 720 g N m-3. A removal rate ofabout 15 g N m-3 d-1 could be reached. The process could be monitored by pH and conductivitymeasurements. Nitrititation was the rate limiting step.

Place, publisher, year, edition, pages
2010. 31-40 p.
Series
Joint Polish . Swedish reports, ISSN 1650-8610 ; 14
Keyword [en]
anammox, biofilm, deammonification, digester supernatant, nitritation
National Category
Water Engineering
Identifiers
URN: urn:nbn:se:kth:diva-81583ISBN: 978-91-7415-411-5 (print)OAI: oai:DiVA.org:kth-81583DiVA: diva2:497642
Conference
Polish-Swedish-Ukrainian seminar, Lviv Ukraine, October 26-28, 2006
Note
QC 20120305Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2012-03-05Bibliographically approved

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http://www2.lwr.kth.se/Forskningsprojekt/Polishproject/rep14/Plaza14p31.pdf

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